Cylinder 6 Injector Circuit Range/Performance
The P02F3 code indicates that the Engine Control Module (ECM) has detected an issue with the electrical circuit or performance of the fuel injector for cylinder 6. This could be due to a faulty injector, wiring problems, or a malfunctioning ECM. The injector circuit is monitored for proper voltage and current; if the readings fall outside the expected range, this code is set.
01. Most Common Causes
- Faulty fuel injector on cylinder 6
- Open or shorted wiring in the injector circuit
- Poor electrical connection at the injector or ECM
- Failed ECM (rare)
02. Symptoms You Will Notice
- Engine misfire on cylinder 6
- Rough idle or hesitation
- Decreased fuel economy
- Check Engine Light illuminated
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and record freeze frame data.
Step 2: Visually inspect the injector connector and wiring for damage or corrosion.
Step 3: Use a multimeter to test the injector resistance (typically 12-16 ohms).
Step 4: Perform a injector balance test or flow test to confirm injector performance.
Step 5: Check for power and ground at the injector connector with the key on.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as the misfire can damage the catalytic converter and cause poor performance.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, including parts and labor, depending on the cause and vehicle.